Cooling radiator and method of correlating the same with motors.



H, N. SEARLESQ COOLING RADIATOR AND METHOD OF COR-RELATING THE SAME WITHM0" RS.

APPLICATION FILED NOV. 24, 1917.

1,293,946. Patented Feb.1l,1919;-

i/VVENlUn uunnunnuum W 5 f7 W I 4170mm -T all whom it may concernHERBERT N. SEARLES, or NEW ionic 1v. Y;-

ooortnvs nanmroza Ann. irnrnon. or oonnnnarrno THE sannwrrn-inorons.

Specification of Letters Patent. Patented Feb. 11, 1919.

application. filed November 24, 1917. Serial No. 203,659.

Be it known that I, HERBERT N. SnAnnEs,

a citizen of the United States, anda resident ofv the borough ofManhattan, city, county,

and State of New York, have invented a new and useful Improvement inCooling Radiators and Methods of Correlating the Same with Motors, ofwhich the following is a specification, reference being had to theaccompanying drawings. In them and in the followingspecification I referto the in- 'ventionas applied to an automobile, It will be understood,however, that'the invention is a plicable to motor boats, and othermechanism, suitable changes being made in appropriate parts ofthe-special structure. Itis-the purpose ofthis invention to so constructthe radiator and its .am'ociated parts that the requisite efliciency maybe socured through less cumbersomeand space-re quiring devices than haveheretofore. been necessary, and also to .so construct and. correlate theparts that the air blast shall be blown directly upon and through theradiator instead of being drawn or sucked through it with the resultthat it is not necessary to place the radiator in front of the motor asthe most forward element or part within the hood, on the contrary, it ispreferably j cated otherwise, as, for example, suspended from thechassis or otherwise supported 1n rear of the hood and its associatedparts,

and if desired, beneath the floor of-the car,

because from such change in location a series of advantages result,among them the following: Thesize of the hood is reduced, the danger ofdamage to the radiator from 001 lision is reduced, uniformity of actionof the radiator, irrespective of the direction of travel, as comparedwith the direction of the wind, is secured, it being immaterial Whetherrunning against or away from a strong wind. The front of the hood may beso constructed as to improve its appearanceand reduce the accumulationof dust and dirt within it, the cost of the radiator element and itsassociated partssmaybe reduced because they need not be so' expensivelyfinished, and especially, because by my'censtruction I am enabled tomaterially reduce-the amount of water requiredfor th radiator and motorjacket.

' Actual test has shown amarked' improvement in the efliciency ofradiators made in accordance with this invention as compared with thatof other forms known to me.

Rcferring to the drawings, Figure l is a diagrammatic elevation of theforward part of an automobile containing a cooling radiator embodying myinvention; Fig. 2 is an elevatlon or plan, as the case may be, dependingupon whether the radiator is horizontally or vertically arranged, theends of the tubes being broken away; Fig. 3 is an edgewise view inelevation of the constructlon shown in Fig. 2; Fig. 4 is a plan view,partly 'broken away, of the construction shown in Figs. 2 and 3; Fig. 5'is a view showing adesirable detail when the constructionis such thatthe fan driving shaft passes through the radiator.

In the drawings 1 represents the chassis, 2 the hood, 3 one of the frontwheels, 4 the casing for the fly wheel and clutch, 5 the gear casing, 6the front seat, 7 the dash, -8 the steering wheel. These and the otherusually present. parts are or may be of any preferred construction. 7

- 9 is the motor, 10, 11, the water circulating pipes, 12 the radiator,13 the fan which is located by the side of the radiator so as not tolimit its cooling surface, and the wings of. the fan have substantiallythe same spread as the diameter of the radiator,

asmuch as this present invention pertains to the construction of theradiator per se, and.

its correlation with the other parts of an automobile, or likemechanism, I do not herein limit myself to any particular form of fan,except that whatever its form, it should. be so related to theradiatorand other co-acting parts that it shall act as a blower andforceits blast through the radiator, and

not as a suction fan drawing the air to it through the radiator. y

In Figs. 2 and 3 of the drawings I illustrate the detail of constructionof'the radiator. The example illustrated hasfive sec- .tions and sixcirculating chambe'rs, three at each end. The sections are readilydistinguishable from each other by the arrows indicating the passage ofthe water through the circulating chambers. The sections are numberedrespectively 17, 18, 19, 20, and 21, and the circulating chambers arenumbered respectively 22, 23, 24, 25, 26 and 27. The pipe 10 is theintake pipe, which-receives the heated water from the jacket of themotor and 11 is the return pipe, which conveys the cooled water from theradiator back again to the jacket of the motor. Each of the fiveradiator sections is, in the example illustrated, composed of sixflattened tubes 28. The metal composing them is thin sheet material,such as used now for this purpose;

but they are set much closer together than heretofore, that is to say, Iseparate the tubes from each other about one sixteenth to about oneeighth of an inch only, depending upon the width of'the tubes; and thisI am enabled to do because my experiments have demonstrated the factthat if the relation of the fan to the radiator be such that the air'will be blown through the tubes, instead of drawn or sucked throughthem, then the tubes may be set much closer together than heretofore,with the result that the same surface cooling area may be obtained undermy construction from a radiator of materially less size than hasheretofore been possible. Each of the tubes connects at its up per .andlower ends with the circulation chambers with which it co acts. Thecirculation chambers are separated from each other by water-tight wallsor partitions 29. Because of the stated constru'ction the watercirculation is as follows, indicated by the arrows.

The heated water coming from the jacket of the motor through the pipe 10enters what may be called the single circulatin chamber 22, passesdownwardly through t e tubes 28, into what may be called the doublecirculating chamber 23, thence passes upwardly through the tubes 28 intowhat may be called the double circulating chamber 24, thence downwardlyagain into the double circulating chamber 25, thence upwardly again tothe double circulating chamber 26, and thence finally downwardly againto the single circulating chamber 27 and thence in its cooled conditionthrough the pipe 11 back again to the jacket of the motor.

In Fig. 1 I have shown the radiator, and the fan arranged in horizontalposition suspended in any suitable manner, as by hangers 30, from thechassis of the car, and substantially under the front seat thereof. Thisposition is shown as one in which the radiator may be convenientlyarranged and it has the advantage thatwhen horizontally arranged theradiator is farther removedfrom the roadbed and also the watercirculation is in horizontal planes instead of vertical planes,consequently a pump to compel the circulation will sometimes beunnecesdEST AVAILABLE CO'r sary;'I prefer to use one, however. It'may,

however, be preferred to locate it otherwise,

of the fan shall. pass through the radiator.

' If so, the parts may beneficially be made as shown in Fig. 5, in whichthe tubes 28 at the part of the radiator through which the fan shaft 31passes,- have a section cut out of them and are connected with a watertight box 32, having awater tight interior sleeve 33, thus affording anopen space 34, through which the shaft 31 passes.

Obviously there may be a greater or less number of sections in eachradiator than I illustrate, and also there may be any desired number oftubes in each section. Also the location of the incoming pipe 10 and theout going pipe 11 may be changed as preferred. Moreover, instead ofthere being a series of circulation chambers of the single and doubleforms described above, there may be but one chamber at either side ofthe radiator, particularly if it be a small one. I illustrate the morecomprehensive construction shown that a broader idea of my invention maybe received. Also I wish it to be understood that although I prefer thatthe radiator and fan should be located in rear of the front of themotor, that the from such locastated advantages resultin tion may besecured, yet that certain of the benefits resulting from my inventionwill be realized, irrespective of the location of the fan and radiator.

It will be obvious to those who are famil- I bers connecting with theends of certain of the tubes and thus dividing them into sets, a waterinlet pipe connecting with the first of the circulating chambers, awater outlet pipe connecting with the last of the circulating chambers,and a fan blower, the span of which is'substantially the same as thewidth of the radiator and the blades of which discharge their blasttransversely through. the series of tubes, the fan bein so arranged asto face one of the broad sur aces of the radiator and both the fan andthe radiator being removed from the hood.

2. In a cooling apparatus of the class stated, the combination of aradiator composed of a plurality of series of flattened and separatedmetallic tubes, each series connecting at each end with inclosed andsepa rated circulating chambers, a water inlet blast upon and throughthe pipeconnecting with the. first of the circulating chambers, a Wateroutlet pipe connecting with the last of the circulating chambers, and afan located outside of an facing one of the broad surfaces of theradiator, the blades whereof discharge their series of tubes, both thefan and the radiator being. removed from the hood and in rear of themotor.

' 3. In a cooling apparatus of the class stated, a radiator comprising aplurality of "series of flattened and separated metallic tubes arrangedhorizontally, each series con necting at each end with inclosed andseparated circulatin chambers arranged vertically, a water in ct pipeconnecting with the first of the circulating chambers, a water ries oftubes, both the fan and the radiator being removed from the hood.

In testimony 'whereof I have signed my name to this specification.

HERBERT X. SEARL'ES.

